:root {
  --bg-dark: #111b21;
  --panel-bg: #202c33;
  --header-bg: #202c33;
  --chat-bg: #0b141a;
  --border-color: #222d34;
  --text-main: #e9edef;
  --text-secondary: #8696a0;
  --green-whatsapp: #00a884;
  --bubble-user: #202c33;
  --bubble-bot: #005c4b;
  --hover-color: #2a3942;
  --blue-emsa: #0056b3;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Sidebar */
.sidebar {
  width: 380px;
  background-color: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 14px 16px;
  background-color: var(--header-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 24px;
  background-color: var(--blue-emsa);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-info h2 {
  font-size: 16px;
  color: var(--text-main);
}

.status-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-block;
  margin-top: 2px;
}

.status-connected {
  background-color: #00a88422;
  color: #00a884;
  border: 1px solid #00a884;
}

.status-connecting {
  background-color: #ffb70322;
  color: #ffb703;
  border: 1px solid #ffb703;
}

.status-disconnected {
  background-color: #e6394622;
  color: #e63946;
  border: 1px solid #e63946;
}

.btn {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.2s;
}

.btn-primary {
  background-color: var(--green-whatsapp);
  color: #fff;
}

.btn-primary:hover {
  background-color: #008f70;
}

.search-box {
  padding: 10px 14px;
  background-color: var(--panel-bg);
  border-bottom: 1px solid var(--border-color);
}

.search-box input {
  width: 100%;
  padding: 8px 14px;
  background-color: #111b21;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  outline: none;
  font-size: 13px;
}

.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 12px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--green-whatsapp);
  border-bottom-color: var(--green-whatsapp);
}

/* Chat Items */
.chats-list,
.registros-list {
  flex: 1;
  overflow-y: auto;
}

.chat-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid #182229;
  cursor: pointer;
  transition: background 0.2s;
}

.chat-item:hover,
.chat-item.active {
  background-color: var(--hover-color);
}

.avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background-color: #6c757d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-right: 14px;
}

.chat-info {
  flex: 1;
  overflow: hidden;
}

.chat-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.chat-phone {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.chat-time {
  font-size: 11px;
  color: var(--text-secondary);
}

.chat-last-msg {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.registro-card {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
}

.registro-card h4 {
  color: var(--green-whatsapp);
  margin-bottom: 4px;
}

.registro-card p {
  color: var(--text-secondary);
  margin-bottom: 2px;
}

/* Right Chat Area */
.chat-area {
  flex: 1;
  background-color: var(--chat-bg);
  display: flex;
  flex-direction: column;
}

.chat-header {
  padding: 14px 20px;
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #0056b3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.user-details h3 {
  font-size: 15px;
  color: var(--text-main);
}

.user-status {
  font-size: 12px;
  color: var(--text-secondary);
}

.messages-container {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-image: radial-gradient(#ffffff0a 1px, transparent 0);
  background-size: 24px 24px;
}

.welcome-screen {
  margin: auto;
  text-align: center;
  max-width: 450px;
}

.welcome-icon {
  font-size: 60px;
  margin-bottom: 16px;
}

.welcome-screen h2 {
  font-size: 22px;
  margin-bottom: 10px;
  color: var(--text-main);
}

.welcome-screen p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Chat Bubbles */
.message-bubble {
  max-width: 65%;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.4;
  position: relative;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.message-bubble.user {
  align-self: flex-start;
  background-color: var(--bubble-user);
  color: var(--text-main);
}

.message-bubble.bot {
  align-self: flex-end;
  background-color: var(--bubble-bot);
  color: var(--text-main);
}

.message-time {
  font-size: 10px;
  color: #ffffff88;
  float: right;
  margin-left: 10px;
  margin-top: 4px;
}

.chat-image {
  max-width: 100%;
  border-radius: 6px;
  margin-top: 6px;
  border: 1px solid var(--border-color);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background-color: var(--panel-bg);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  max-width: 420px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.modal-content h3 {
  margin-bottom: 10px;
  color: var(--text-main);
}

.modal-content p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.qr-container img {
  width: 250px;
  height: 250px;
  border-radius: 8px;
  background-color: white;
  padding: 10px;
}

.qr-subtext {
  font-size: 11px !important;
  margin-top: 15px;
}

.hidden {
  display: none !important;
}